A lot of volcanoes are in tropical locales... but not all of them! I love pictures of simmering calderas surrounded by snow and ice, like this one of Klyuchevskaya taken by the Terra satellite. The volcano is in Kamchatka, Russia (well-known to players of the game Risk).

Klyuchevskaya erupts calmly and steadily, releasing the pressure underneath it continuously, instead of in a more dramatic explosion. That whole region is lousy with craggy mountains and volcanoes; click the link to get access to a huge version of this image and get an overview of this forbidding landscape.